Call the factory. Unless you have some kind of special “vacuum-certifying” equipment. I really don’t get why this is such a “thing”. You’re the 3rd question I’ve answered about this. It’s a good car with effective suction, whether 6.0 or 6.5 hp.
Sorry, we cannot tell you the ID of the suction port for now. In addition to the hose assembly, other accessories can try to connect with 32mm diameter accessories (such as floor brush, small brush, pipe).
